[argyllcms] Re: [argyllcms] How can I tell if I'm using my profile? (and other questions)

For the first question - Here are five pictures on the page:
http://shadrin.rudtp.ru/Personal/Shadrin_news_hot6.htm
they look identical only if the browser have color management. If you need to 
check your display profile, try to load a "bad", inappropriate display profile. 
If the pictures in browser looks worser, then profile works.

The third question - I think, 130 Cd/m^2 brightness was by 6500K white point, 
when dispcal has to decrease maximum level in some channel to fit wite point to 
6500K. The normal native maximum brightness may be 170 Cd/m^2 without any 
drift. It's not a problem.

-----Original Message-----
From: Adrian Mariano <adrian@xxxxxxxxx>
To: argyllcms@xxxxxxxxxxxxx
Date: Wed, 29 Oct 2008 10:19:16 -0400
Subject: [argyllcms] How can I tell if I'm using my profile? (and other 
questions)


I ran dispcal with the -o option so as to produce a profile as output.  
I loaded the profile using dispwin under linux.  Now I go into firefox 3 
and color management is turned on.  Does firefox find the profile that 
was loaded using dispwin?  Can I observe the effects of this profile?  
(Am I likely to be able to see the difference between using the profile 
vs. just calibrating the display and not using the profile?)

As a second set of questions: my goal is simply to get colors to look 
"right" (good) in pictures I take with my digital camera or if I visit a 
web page and look at pictures of colorful merchandise, for example.  I 
made the above profile using sRGB, but I noticed the suggestion in the 
documentation that perhaps a gamma of 2.4 would be a better choice?  I 
think the last time I ran a calibration I specified a temperature of 
6500 K, but this time I forgot that option, which apparently means the 
monitor's native white point is used.  Am I better off using the native 
white point? 

How long should I expect it to take for my LCD display to stabilize?  I 
sat down and woke it up and started looking at its brightness and it was 
130 cd/m^2.  I couldn't remember what I'd calibrated it to, but I new it 
was much higher, something more like 170 cd/m^2, I think.  I sat in 
dispcal and watched the value creep upwards.  After, oh, maybe 45 
minutes it seemed somewhat stable at 166 cd/m^2, though it might have 
been drifting a bit still.  I assume that trying to run a calibration or 
a profile while your display is drifting is going to give a poor result.

I am using argyll 1.03 and it appears that argyll disables the screen 
blanker in X but does not turn it back on when it is done.

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